1# SPDX-License-Identifier: GPL-2.0
2#
3# Samsung SoC drivers
4#
5menuconfig SOC_SAMSUNG
6	bool "Samsung SoC driver support" if COMPILE_TEST
7
8if SOC_SAMSUNG
9
10# There is no need to enable these drivers for ARMv8
11config EXYNOS_ASV_ARM
12	bool "Exynos ASV ARMv7-specific driver extensions" if COMPILE_TEST
13	depends on EXYNOS_CHIPID
14
15config EXYNOS_CHIPID
16	tristate "Exynos ChipID controller and ASV driver"
17	depends on ARCH_EXYNOS || COMPILE_TEST
18	default ARCH_EXYNOS
19	select EXYNOS_ASV_ARM if ARM && ARCH_EXYNOS
20	select MFD_SYSCON
21	select SOC_BUS
22	help
23	  Support for Samsung Exynos SoC ChipID and Adaptive Supply Voltage.
24	  This driver can also be built as module (exynos_chipid).
25
26config EXYNOS_USI
27	tristate "Exynos USI (Universal Serial Interface) driver"
28	default ARCH_EXYNOS && ARM64
29	depends on ARCH_EXYNOS || COMPILE_TEST
30	select MFD_SYSCON
31	help
32	  Enable support for USI block. USI (Universal Serial Interface) is an
33	  IP-core found in modern Samsung Exynos SoCs, like Exynos850 and
34	  ExynosAutoV9. USI block can be configured to provide one of the
35	  following serial protocols: UART, SPI or High Speed I2C.
36
37	  This driver allows one to configure USI for desired protocol, which
38	  is usually done in USI node in Device Tree.
39
40config EXYNOS_PMU
41	bool "Exynos PMU controller driver" if COMPILE_TEST
42	depends on ARCH_EXYNOS || ((ARM || ARM64) && COMPILE_TEST)
43	select EXYNOS_PMU_ARM_DRIVERS if ARM && ARCH_EXYNOS
44	select MFD_CORE
45	select REGMAP_MMIO
46
47# There is no need to enable these drivers for ARMv8
48config EXYNOS_PMU_ARM_DRIVERS
49	bool "Exynos PMU ARMv7-specific driver extensions" if COMPILE_TEST
50	depends on EXYNOS_PMU
51
52config SAMSUNG_PM_CHECK
53	bool "S3C2410 PM Suspend Memory CRC"
54	depends on PM && (ARCH_S3C64XX || ARCH_S5PV210)
55	select CRC32
56	help
57	  Enable the PM code's memory area checksum over sleep. This option
58	  will generate CRCs of all blocks of memory, and store them before
59	  going to sleep. The blocks are then checked on resume for any
60	  errors.
61
62	  Note, this can take several seconds depending on memory size
63	  and CPU speed.
64
65config SAMSUNG_PM_CHECK_CHUNKSIZE
66	int "S3C2410 PM Suspend CRC Chunksize (KiB)"
67	depends on PM && SAMSUNG_PM_CHECK
68	default 64
69	help
70	  Set the chunksize in Kilobytes of the CRC for checking memory
71	  corruption over suspend and resume. A smaller value will mean that
72	  the CRC data block will take more memory, but will identify any
73	  faults with better precision.
74
75config EXYNOS_REGULATOR_COUPLER
76	bool "Exynos SoC Regulator Coupler" if COMPILE_TEST
77	depends on ARCH_EXYNOS || COMPILE_TEST
78endif
79